// Copyright 2018 StreamSets Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package common

const (
	CurrentOffsetVersion = 2
	PollSourceOffsetKey  = "$com.streamsets.sdc2go.pollsource.offset$"
)

var emptyOffset = ""

type SourceOffset struct {
	Version int
	Offset  map[string]*string
}

func GetDefaultOffset() SourceOffset {
	return SourceOffset{
		Version: CurrentOffsetVersion,
		Offset:  map[string]*string{PollSourceOffsetKey: &emptyOffset},
	}
}
